Abstract:
The invention provides a novel compound useful as a highly-sensitive photopolymerization initiator that has excellent stability, low sublimability, excellent developability, and high transmittance in the visible region and that efficiently absorbs, and is activated by, near-ultraviolet rays such as at 365 nm. Also provided are a photopolymerization initiator and a photosensitive composition using the above-described compound. Specifically, the invention provides an oxime ester compound represented by the following general formula (I), a photopolymerization initiator containing the same, and a photosensitive composition containing the photopolymerization initiator and a polymerizable compound having an ethylenically unsaturated bond: wherein, R 1 and R 2 each represent R 11 , COR 11 , CONR 12 R 13 , CN, etc.; R 11 , R 12 , and R 13 each represent a C 1-20 alkyl group, etc.; R 3 and R 4 each represent R 11 , OR 11 , COR 11 , CONR 12 R 13 , OCOR 11 , CN, a halogen atom, etc.; a and b each represent an integer of 0 to 4; X represents an oxygen atom, a sulfur atom, etc.; and R 5 represents OH, COOH, or a group represented by general formula (II).
Abstract:
An oxime ester compound represented by general formula (I): wherein R 1 , R 2 , and R 3 each independently represent R 11 , OR 11 , COR 11 , SR 11 , CONR 12 R 13 , or CN; R 11 , R 12 , and R 13 each independently represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, an arylalkyl group having 7 to 30 carbon atoms, or a heterocyclic group having 2 to 20 carbon atoms, R 4 and R 5 each independently represent R 11 , OR 11 , SR 11 , COR 11 , CONR 12 R 13 , NR 12 COR 11 , OCOR 11 , COOR 11 , SCOR 11 , OCSR 11 , COSR 11 , CSOR 11 , CN, a halogen atom, or a hydroxyl group; and a and b each independently represent 0 to 3.
Abstract:
A novel compound having satisfactory sensitivity (base generating performance), a photosensitive resin composition containing the compound as a photo-initiator, and a cured product of the composition are provided. Specifically, a compound represented by general formula (1) (compound (1)), a photosensitive resin composition containing (A) a photo-initiator comprising at least one compound (1) and (B) a photosensitive resin are provided. Preferred are the compound (1) in which R 1 is an unsubstituted or substituted C6-C20 aromatic hydrocarbon group, the compound (1) in which at least one of R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , and R 11 is nitro, and the compound (1) in which n is 0. The symbols in general formula (1) are as defined in the description.
Abstract:
PROBLEM TO BE SOLVED: To provide a new compound excellent in stability, having a low sublimating property, excellent in developing property, having high transmittance in a visible light region and useful as a highly sensitive photopolymerization initiator activated by absorbing a near ultraviolet light at 365 nm etc., in a good efficiency, and a photopolymerization initiator and a photosensitive composition by using the same compound. SOLUTION: This oxime ester compound is expressed by general formula (I), and the photopolymerization initiator containing the compound and a photosensitive composition obtained by incorporating a polymerizable compound having an ethylenically unsaturated bond to the photopolymerization initiator are provided. COPYRIGHT: (C)2011,JPO&INPIT